STL, a new approach to field development
Submerged Turret and Loading (STL) is an efficient and safe system for offshore loading and storage. The loading system can effectively be adapted to specific field requirements and operational conditions. The STL is designed to meet the requirements for versatile and flexible field development, allowing loading operations to take place all year round in the harshest environments. The STL concept has been selected for field development projects with different operational requirements i.e. (1) Direct Shuttle Loading (DSL) which permits loading of processed crude oil directly into shuttle tankers without the requirement for oil storage at the field. A Direct Shuttle Loading system is installed at the Heidrun Field (Conoco). (2) STL as a Floating Storage Unit (FSU) application has been selected for the Fulmar Field (Shell/Esso) and the Yme Field (Statoil). Both FSU`s are converted standard tankers (Aframax and Suezmax) and designed for operation in extreme North Sea environments. (3) An STL buoy can be arranged as an effective offshore loading terminal. BP have selected STL for the Harding Field. The STL loading terminal will be used for export from a subsea field storage. (4) Based on the STL technology Statoil have launched a new design, Multipurpose Shuttle Tanker (MST). This unit will be equipped with the STL ship systems allowing it to operate as an STL tanker for direct shuttle loading, as an STL loading terminal or as a storage unit. In addition the vessel is equipped for operation as a standard North Sea shuttle tanker capable of loading from floating storage units and standard North Sea loading terminals via a loading hose in the conventional manner. (5) The production concept, developed from STL technology can effectively be used for conversion of standard tankers to FPSO or for new-built FPSOs.
- OSTI ID:
- 160674
- Report Number(s):
- CONF-950501-; TRN: IM9603%%256
- Resource Relation:
- Conference: 27. offshore technology conference, Houston, TX (United States), 1-4 May 1995; Other Information: PBD: 1995; Related Information: Is Part Of 27. Annual Offshore Technology Conference: 1995 Proceedings. Volume 4: Field drilling and development systems; PB: 688 p.
- Country of Publication:
- United States
- Language:
- English
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